| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| B.E.S. Uk Ltd | 05807218 | 05/05/2006 | Dissolved |
| HAFOD QUARRIES LIMITED | 00284151 | 23/06/2009 | Dissolved |
| MWH CONSULTING LIMITED | 03821850 | 23/06/2009 | Dissolved |
| MWH RECYCLING LIMITED | 03944799 | 23/06/2009 | Dissolved |
| Murray - Eisenberg Ltd | 04956964 | 07/11/2003 | Dissolved |
| Mwh Developments Ltd | 03945335 | 23/06/2009 | Dissolved |
| Mwh Energy Ltd | 03944793 | 23/06/2009 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CCK REALISATIONS (2019) LIMITED | 01737260 | 29/12/1992 | 28/03/2001 | Dissolved |
| Contract Chemicals (Gloucester) Ltd | 03574493 | 22/06/1998 | 28/02/2001 | Dissolved |
| Contract Chemicals (Leeds) Ltd | 03055640 | 01/07/1995 | 28/02/2001 | Dissolved |
| James Price Glass + Glazing Systems Ltd | 04236668 | 30/04/2003 | 31/03/2004 | Dissolved |
| James Price Plc | 01189447 | 07/03/2003 | 31/03/2004 | Dissolved |
| M W H DEVELOPERS LIMITED | 03076424 | 23/06/2009 | 27/11/2009 | Dissolved |
| MERSEY WASTE HOLDINGS LIMITED | 02719545 | 02/06/2009 | 06/12/2016 | Gold |
| MERSEY WASTE LIMITED | 03821854 | 23/06/2009 | 06/12/2016 | Gold |
| MWH ASSOCIATES LIMITED | 03944764 | 23/06/2009 | 06/12/2016 | Gold |
| POWDER SYSTEMS LIMITED | 02233044 | 14/03/2001 | 17/01/2003 | Gold |
| ROSTECH ENVIRONMENTAL LTD | 10233804 | 17/01/2017 | 29/06/2018 | Dissolved |